$OpenBSD: patch-src_sshguard_procauth_c,v 1.1.1.1 2010/09/07 12:23:43 millert Exp $
--- src/sshguard_procauth.c.orig	Mon Aug  9 02:44:15 2010
+++ src/sshguard_procauth.c	Mon Aug 30 13:05:40 2010
@@ -192,7 +192,7 @@ static int procauth_ischildof(pid_t child, pid_t paren
         dup2(ps2me[1], 1);
 
         sshguard_log(LOG_DEBUG, "Running 'ps axo pid,ppid'.");
-        execlp("ps", "ps", "axo", "pid,ppid", NULL);
+        execlp("ps", "ps", "axo", "pid,ppid", (char *)0);
 
         sshguard_log(LOG_ERR, "Unable to run 'ps axo pid,ppid': %s.", strerror(errno));
         exit(-1);
